<template>
    <div class="login-container">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on" label-position="left">

            <div class="title-container">
                <h3 class="title">Login Form</h3>
            </div>

            <el-form-item prop="username">
                <span class="svg-container">
                    <svg-icon icon-class="user" />
                </span>
                <el-input
                    ref="username"
                    v-model="loginForm.username"
                    placeholder="Username"
                    name="username"
                    type="text"
                    tabindex="1"
                    autocomplete="on"
                />
            </el-form-item>

            <el-tooltip v-model="capsTooltip" content="Caps lock is On" placement="right" manual>
                <el-form-item prop="password">
                    <span class="svg-container">
                        <svg-icon icon-class="password" />
                    </span>
                    <el-input
                        :key="passwordType"
                        ref="password"
                        v-model="loginForm.password"
                        :type="passwordType"
                        placeholder="Password"
                        name="password"
                        tabindex="2"
                        autocomplete="on"
                        @keyup.native="checkCapslock"
                        @blur="capsTooltip = false"
                        @keyup.enter.native="handleLogin"
                    />
                    <span class="show-pwd" @click="showPwd">
                        <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
                    </span>
                </el-form-item>
            </el-tooltip>

            <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">Login</el-button>

            <div style="position:relative">
                <div class="tips">
                    <span>Username : admin</span>
                    <span>Password : any</span>
                </div>
                <div class="tips">
                    <span style="margin-right:18px;">Username : editor</span>
                    <span>Password : any</span>
                </div>

                <el-button class="thirdparty-button" type="primary" @click="showDialog=true">
                    Or connect with
                </el-button>
            </div>
        </el-form>

        <el-dialog title="Or connect with" :visible.sync="showDialog">
            Can not be simulated on local, so please combine you own business simulation! ! !
            <br>
            <br>
            <br>
            <social-sign />
        </el-dialog>
    </div>
</template>

<script>
import { validUsername } from "@/utils/validate";
import SocialSign from "./components/SocialSignin";

export default {
    name: "Login",
    components: { SocialSign },
    data() {
        const validateUsername = (rule, value, callback) => {
            if (!validUsername(value)) {
                callback(new Error("Please enter the correct user name"));
            } else {
                callback();
            }
        };
        const validatePassword = (rule, value, callback) => {
            if (value.length < 6) {
                callback(new Error("The password can not be less than 6 digits"));
            } else {
                callback();
            }
        };
        return {
            loginForm: {
                username: "admin",
                password: "111111"
            },
            loginRules: {
                username: [{ required: true, trigger: "blur", validator: validateUsername }],
                password: [{ required: true, trigger: "blur", validator: validatePassword }]
            },
            passwordType: "password",
            capsTooltip: false,
            loading: false,
            showDialog: false,
            redirect: undefined,
            otherQuery: {}
        };
    },
    watch: {
        $route: {
            handler: function(route) {
                const query = route.query;
                if (query) {
                    this.redirect = query.redirect;
                    this.otherQuery = this.getOtherQuery(query);
                }
            },
            immediate: true
        }
    },
    created() {
    // window.addEventListener('storage', this.afterQRScan)
    },
    mounted() {
        if (this.loginForm.username === "") {
            this.$refs.username.focus();
        } else if (this.loginForm.password === "") {
            this.$refs.password.focus();
        }
    },
    destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
    },
    methods: {
        checkCapslock(e) {
            const { key } = e;
            this.capsTooltip = key && key.length === 1 && (key >= "A" && key <= "Z");
        },
        showPwd() {
            if (this.passwordType === "password") {
                this.passwordType = "";
            } else {
                this.passwordType = "password";
            }
            this.$nextTick(() => {
                this.$refs.password.focus();
            });
        },
        handleLogin() {
            this.$refs.loginForm.validate(valid => {
                if (valid) {
                    this.loading = true;
                    this.$store.dispatch("user/login", this.loginForm)
                        .then(() => {
                            this.$router.push({ path: this.redirect || "/", query: this.otherQuery });
                            this.loading = false;
                        })
                        .catch(() => {
                            this.loading = false;
                        });
                } else {
                    console.log("error submit!!");
                    return false;
                }
            });
        },
        getOtherQuery(query) {
            return Object.keys(query).reduce((acc, cur) => {
                if (cur !== "redirect") {
                    acc[cur] = query[cur];
                }
                return acc;
            }, {});
        }
    // afterQRScan() {
    //   if (e.key === 'x-admin-oauth-code') {
    //     const code = getQueryObject(e.newValue)
    //     const codeMap = {
    //       wechat: 'code',
    //       tencent: 'code'
    //     }
    //     const type = codeMap[this.auth_type]
    //     const codeName = code[type]
    //     if (codeName) {
    //       this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
    //         this.$router.push({ path: this.redirect || '/' })
    //       })
    //     } else {
    //       alert('第三方登录失败')
    //     }
    //   }
    // }
    }
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
